Stump-puller attachment for tractors



Nov. 23 1926. 1,608,357

45. BENSCHEIDT STUMP FULLER ATTACHMENT FOR TRACTORS Filed March 25. 1926 2 Sheets-Sheet l INVENTOR.

/ ATTORNEY.

Patented Nov. 23, 1926.

UNITED SATES EMIL BENSCHEIDT, OF TILLAMOGK, OREGON.

STUMP-PULLER ATTACHMENT FOR FR-ACTORS.

Application filed March 25. 1925.

This invention relates to an improved type of pulling machinery and pertains particularly to an attachment for tractors adapted for the pulling of stumps or other articles of like character.

The primary object of this invention is the provision, in a manner as hereinafter set forth, of a tractor stump pullingattachment making use of tractor power in a novel manner.

Another object of the invention is the provision, in a manner as hereinafter set forth, of a stump pulling apparatus having means for exerting a pulling force simultaneously from opposite directions.

Still another object of the invention is the provision, in a manner as hereinafter set forth, of a stump pulling means of simple but strong .and durable construction, efficient, and inexpensive to set up.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming a part of this specification, with the understanding that the invention is not confined to any strict conformity with the showing of the drawings but may be changed and modified so long as such changes and modifications mark no material departure fromthe salient features of the invention as expressed in the appended claims.

In the drawings I Figure 1 shows the machine embodying this invention in side elevation.

Figure 2 shows the same in top plan view, a portion of the tractor structure being removed.

Figure 3 is a transverse section of the device taken upon the line 3-3 of Figure 2.

Referring now to the drawings in detail wherein like numerals of reference indicate corresponding parts throughout the several views, there is indicated generally by the numerals 1 a base or platform structure for the support of a tractor and the attachment embodying this invenion, and this base comprises a pair of spaced parallel timbers 1 of heavy construction which form the side rails of a supporting platform or sled for the machine parts. These timbers 1 are held in spaced relation by the cross connecting timbers 2, the ends of which are mortised into the side timbers 1 as shown in Figure 1. The end cross timbers 2 are, as shown in Serial No. 97,319.

Figure 2, spaced inwardly from the ends of the sidetiinbers 1 and extending from the central portion of thecross timbers 2 to and abutting the side timbers at the outer ends thereof are angled brace timbers 3 the ends of which are bolted to the cross timbers and to the side timbers by means of the bolts 4.

As is shown in Figure 2, the intermediate cross timber is positioneo closer to one end cross timber 2 than to the other thus leaving comparatively large space and in this space there is positioned cross brace timbers 5 which assume the shape of a letter X and which have the ends of, their legs bolted to the side timbers by means of the bolts 6.

In the angled space formed between two of the legs of the crossed members 5 at the adjacent side beam 1 there is fixed a plat form 7 the surface of which is flush with the top of the beams 1 and 5.

The above described structure has been shown for supporting a tractor and the attachment embodying this invention, but it is understood that applicant does not limit himself to a supportin base of this type but may use any other appropriate supporting structure.

Liounted upon each of the risers 8 which are secured opposite each other upon the top of the side beams 1 is a bearing member 9 and extending between these bearing members, with its end mounted therein, is a revoluble shaft 10.

Mounted upon the shaft 10 adjacent each bearing 9,. is a relatively large sprocket wheel 11 which wheel has the inner portion of the hub enlarged as at 12 and provided upon its inner face with clutch teeth 13. Mounted upon the shaft 10 is a pair of drum members let and 15 respectively, provided with the flange 16 and held in spaced relation on the shaft 10, by the interposed washer 17 which surrounds the shaft as shown. The. outer end of each of the drums the adjacent drum, the other sprocket wheel is disconnected from its adjacent drum. As may be clearly seen the drums may thus be operated independently.

Mounted upon the intermediate cross beam 2, adjacent each end thereof, is an upright inverted substantially U-shaped support member indicated generally by the numeral 19. The free ends of the legs of these members 19 are turned at right angles to form foot portions 20, one foot portion of one leg being bolted or otherwise secured to the intermediate cross beam 2 while the foot portion of the other leg is mounted on the adjacent leg of one of the cross beams 5 as shown in Figure 2. The upper or yoke por tion of each of these supporting members 19 is provided with a broad plate portion 21 and these portions 21 of the standards are adapted to receive and support the rear axle housing 22 of a tractor indicated as a whole by the numeral 23.

The tractor s3 is mounted upon the base structure formed of the beams 1, 2, 3 and 5 and the front wheels 24L of the tractor are arranged between one cross beam 2 and the adjacent legs of the cross beams 5 as shown in Figure 1.

The rear or drive wheels of the tractor are removed after the same is mounted upon the base structure, the axle housing 22 being placed in position upon the supporting plate 21, U-bolt members 25 are then passed over .the axle housing into the plate 21 and secured into position to hold the rear of the tractor rigidly supported.

The axle 26 of the tractor, from which the drive wheels have been removed, has placed upon each end thereof, in the position assumed by the drive wheels, a relatively small sprocket gear 27, and over these sprocket gears and the sprocket gear located in the rear thereof, there is passed the endless sprocket chain 28 by means of which power is transmitted from the tractor axle 26 to the sprocket wheels 11 and the drum which may be attached thereto.

Mounted upon the platform 7, forwardly of the supporting standard 19 which is adjacent the platform is a toothed segment 29 and pivoted at the radial center of the segment 29, is a lever 30 having the usual latching means 31 which is adapted to engage between the teeth of the segment.

Secured at one end to this lever 30 and extending rearwardly therefrom is a link 32, the other or rear end of which engages in an aperture formed through the end of an arm 33 of a bell crank lever 34:. This bell crank lever is pivot-ally mounted at the point of joinder of the two arms 33 and 35, by means of the pivot bolt 36 to the usual tractor hitch device 37 which is located at the central portion of the tractor in the rear thereof.

The free end of the other arm of the bell crank member 34 is bifurcated forming furcations 38, which bifurcated end is arranged to straddle the two adjacent inner flanges 16 of the drums 14 and 15. It will be seen that upon swinging the lever 30 the bell crank member 34: will be actuated to swing the bifurcated end of the arm 35 transversely of the tractor supporting frame to move the drums 14 and 15 upon the shaft 10 to cause the clutch teeth upon one or the other of the drums to engage the corresponding teeth upon the adjacent sprocket gear. Power will then be trans mitted from the axle 26 of the tractor, through the sprocket wheels and chain to revolve the drums ltor 15.

When the stump pulling structure is in position, tie ropes 39 may be passed about the rearone of the cross beams 2 and secured to any appropriate and convenient tree or other fixed object. A cable such as that indicated at 10, wound about one of the drums, has its free end extended beneath the tractor and forwardly thereof to the stump which is to be removed. It will be readily seen that upon winding the cable 40 upon the drum upon which it is mounted that the stump extracting operation willbe effectively carried out. a

From the foregoing description it will be readily seen that there has been provided a new, simpler and more efficient type of stump puller employing a tractor as power means.

Having thus described my invention what I claim is 1. A stump pulling tractor attachment, comprising a base designed to receive a tractor after which the drive wheels are removed, a shaft revolubly mounted upon said base, a pair of cable drums mounted in axial alignment with each other to revolve on said shaft, means for transmitting power from the drive axle of said tractor to either of said drums to revolve the same, and means for shifting the drums in unison, to alternately disengage the same from said power means.

2. A stump pulling tractor attachment, comprising a base designed to receive atractor after which the drive wheels are removed, a shaft revolubly mounted upon said base, plural cable drums mounted side by side to revolve on said shaft, sprocket wheels carried upon said shaft beyond the outer ends of said drums, sprocket gears mounted upon the drive axle of said tractor, sprocket chains connecting said gears with said wheels for transmitting power to said drums, and means for shifting the drums in unison to alternately engage with and disengage the sprocket wheels.

3. A stump pulling tractor attachment, comprising a base designed to receive a tractor after which the drive wlieels'are re moved, a shaft revolubly mounted upon said base, plural cable drums mounted side by side to revolve on said shaft, sprocket wheels carried upon said shaft beyond the outer ends of the drums, sprocket gears mounted upon the drive axle of said tractor, sprocket chains connecting said gears with said Wheels for transmitting power to said drums, flanges on the inner ends of said drums, a bell crank member adapted to be mounted upon said tractor and having the end of one arm thereof adapted to engage the flanges of said drums to move the same in unison, and a lever member connected to the free end of the other arm of said crank member for swinging the crank to cause said drums to shift for the engagement or disengagement thereof with the sprocket Wheels.

In testimony whereof, I afiix my signa- 20 ture hereto.

EMIL BENSOHEIDT. 

